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1 对象与方法 1988年7月～1991年7月居住县城内,由县保健所医士以上人员进行系统管理的孕管卡中,随机抽样900例,记录完全的有865例。将上述865例孕管卡中的产妇年龄、职业、分娩方式、分娩季节、新生儿性别、出生体重及28d的体重与喂养情况等进行逐一统计。 2 结果见表1～6
1 Subjects and methods July 1988 ~ July 1991 living in the county seat, by the county health center for more than a year of systematic management of health care card, a random sample of 900 cases, a total of 865 records. The 865 cases of pregnancy card in the maternal age, occupation, mode of delivery, delivery season, newborn sex, birth weight and body weight and feeding 28d and other statistics were carried out one by one. 2 results in Table 1 ~ 6